Pessimistic and Optimistic concurrency control?,

Explain role of actionservlet , ActionServlet performs the role of Contro...

ActionServlet performs the role of Controller: ? Process user requests ? Verify what the user is trying to achieve according to the request ? Pull data from the model (if

Programming Excercise, I have to Create a program that determine the shippi...

I have to Create a program that determine the shipping cost for an order based on he following chart: From To Price $0.00 $19.99 $2.95 $20.00 $49.99 $3.95

Difference between an interface and an abstract class, What is the differen...

What is the difference between an Interface and an Abstract class? An abstract class can have instance methods that execute a default behavior. An Interface can only declare co

Program to calculate the value into hours and minutes, Specifically, you'll...

Specifically, you'll create a program that will hold minutes worked and assign a value. Calculate the value into hours and minutes. Display the result as shown in Figure 2. Reme

Different points where weaving can be applied, What are the different point...

What are the different points where weaving can be applied? Ans) There are three points ? Compile Time ? Classload Time ? Runtime

What is meant by universal access of internet services, What is meant by un...

What is meant by universal access of internet services ? the meaning of Universal access of internet services means same functionality to everyone.

Explain parentheses in java, Explain Parentheses in Java ? Sometimes th...

Explain Parentheses in Java ? Sometimes the default sequence of evaluation isn't what you want. For example, the formula to change a Fahrenheit temperature to a Celsius tempera

Define when to use hashmap and when to use treemap, How do you decide when ...

How do you decide when to use HashMap and when to use TreeMap? When we want to perform deletion, insertion and locate elements in a Map then HashMap is used. Whereas TreeMa

Big m method, i''ve done an application that calculates simplex methods i n...

i''ve done an application that calculates simplex methods i need to add big m method can any one help me?